《英语人教版八年级下册现在完成时精品ppt课件.ppt》由会员分享，可在线阅读，更多相关《英语人教版八年级下册现在完成时精品ppt课件.ppt（27页珍藏版）》请在三一办公上搜索。
1、Present Perfect Tense,Present perfect tense 现在完成时,构成:用法一：,表示过去发生的某一动作对现在造成的影响或产生的结果.现在完成时这一时态强调是过去动作与现在的联系,也就是强调现在的影响和结果.,have/has + 过去分词,1.都表示过去发生的事2.现在完成时强调过去和现在的联系，不能和具体的时间状语连用；3.一般过去时强调过去发生的事或状态与表示过去的具体时间连用（last, ago, yesterday, etc. ）,present,past,I have lived here for two years,I lived there 2
2、 years ago,常用于现在完成时的时间副词,介词:already (已经): 用于肯定句 yet(已经): 用于否定句一般疑问(句末） just (谓语动词之前) （刚刚）, ever(曾经) 疑问句) never(从不) I have never seen him .before(以前) Have you seen the film before?in /duringthe past several days / weeks/ years(在过去的)recently(最近) I have not written to my parents recently.so farby now (
3、到目前为止) So far she has learned 5 English songs.by now (so far),up to now(到目前为止) all ones life , once, twice, this morning/month/year(今天早上/这个月/今年),Exercises,1. I _(have) lunch already.2. Has the train_ (arrive), yet?3.Tome _ never_ (be to ) China.4. The twin _just _(see) my father.5. The twins _(see)
4、my father just now.6. Many tall buildings _(build) in the past 5 years.,have had,arrived,has,been to,has,seen,saw,have been built,用法二：,表示过去已经开始，持续到现在的动作或状态，也可以表示一直持续到现在并可能还将持续下去。A 动词使用延续性动词。B 和表时间段的时间状语连用。常与for或since引导的时间连用so far, up to/till now, in the last/past+一段时间，all ones life, by now, these da
5、ys、for two years、since 1984、since he came here I havent seen her these days. She has learnt English for 3 years/since 3 years ago. They have lived here since 1990. What has happened to the USA in the last 350 years?,注意：(1)since一段时间agofor时间段; since two weeks ago=for two weeks; I have kept the library
6、 book for a week.= I have kept the library book since a week ago. (2)since + 时间点for时间段 since 2000=for years(3) since+从句(常用一般过去时) The Greens have lived in Beijing since they moved to Beijing from Paris(4)It is /has been +一段时间 + since 从句. 自从某事发生已有一段时间了. It is /has been two years since my brother joine
7、d the army.,for和since的运用for “经历(时间段)” since “自从以来” for时间段 since时间段 ago since时间点 since从句,1.Hehasstayedherefor3hours.2.Hehasstayedheresince3hoursago.3.Hehasstayedheresince3oclock.4.HehastaughtEnglishsincehecamehere.,练一练：用for和since填空。,_three hours_three oclock_two days_yesterday afternoon_I came here_l
8、ast Sunday,_a week_a long time_1997 _two weeks_three years ago _ last month,for,since,for,since,since,since,for,for,since,for,since,since,用for 或since填空。1. Jill has been in Ireland_Monday.2. Jill has been in Ireland_three days.3. My aunt has lived in Australia_15 days.4. Margaret is in her office. Sh
9、e has been there_7 oclock.5. India has been an independent country_1974.6. The bus is late. Weve been waiting_20 minutes.7. Nobody lives in those houses. They have been empty many years.8. Mike has been ill_a long time. He has been in hospital _October9. Its ten years _ we met each other last time.
10、10. He has taught English _ 25 years. 11. The Greens have lived on the farm _ 1990. 12. They have been practicing the guitar _ two hours. 13.How long have you been a reporter? _ 8 years ago. 14. I havent gone for a walk in the park _ a long time. 15. Hes been collecting stamps _ he was in primary sc
11、hool. 16. Peter has been to summer camp _ 3 times.,注意点一:since 的用法1. +具体的过去时间 since 2008 since since last Sunday +ago since two years ago +句子(过去时)2. It is /has been +一段时间 + since 从句.(自从某事发生已有一段时间了.)It is /has been two years since my brother joined the army.,实义动词分为: 1) 瞬间动词 2)延续动词,瞬间动词,注意: 瞬间动词不能和时间段连
12、用.,常见非延续性动词和延续性动词的转变,arrive/come/go to die become a borrowLeave/ move buy openjoin start/begin finish/ endcatch a cold get up get to know get out close wake upgo to sleepbecome interested in,be in,be dead,have,keep,be away / be out,be a,be in/a member of,be open,be on,be over,have a cold,be up,know,
13、be out,be closed,be awake,be asleep/ sleep,be interested in,巧记瞬间性动词的转换 “开始离去借来还， 出生入死买到家，穿衣入睡要感冒， 开开关关变结束。”,结束性动词转换为以下延续性动词或者表示可以延续的状态的短语 arrive at / in sp / get to / reach sp / come / go / move to sp be in sp / at school / at home / on the farm / be here / be thereHe got to Beijing five minutes ago
14、.He Beijing for .2) I moved to the USA in 2008. I the USA since .3) I went home yesterday. I home for .4)They came here last week. They _ here since _. come to / go back to / return to be back to go out be outHe came out two years ago.He _ for _.2) We return to Beijing yesterday.We _ _ to Beijing si
15、nce _. become beI became a teacher in 2000. I _ a teacher for_.2) The river became dirty last year. The river _ _ dirty for _ _. close be closed open be openThe shop closed two hours ago. The shop _ _ for _.2) The door opened at six in the morning. The door _ _ _ for six hours., get up be up; die be
16、 dead; leave sp. be away from sp.fall asleep / get tot sleep be asleep; finish / end be over;marry be married;1) I got up two hours ago.I _ _ _since _.2) He left Shanghai just now.He _ _ _ Shanghai for five minutes.3) My grandpa died in 2002.My grandpa _ _ _for _ _.4) The meeting finished at six.The
17、 meeting _ _ _ for six hours.5) I got to sleep two hours ago .I _ _ _ since _ _.6) They married in 1990. They _ _ _since _. start / begin to do sth. do sth. ;begin be on1) I began to teach at this school in 1995. I _ _ at this school since _.2) The film began two minutes ago. The film _ _ _ for _ _.
18、, borrow keep; lose not have ;buy have ;put on wearcatch / get a cold have a cold; get to know know1) They borrowed it last week. They _it since _.2) I bought a pen two hours ago. I _a pen for _.3) I got to know him last year. I _ him since _.4) I put on my glasses three years ago. I _ my glasses fo
19、r _.have / has gone to have been inHe has gone to Beijing.He _ Beijing for two days. join the league / the Party / the army be a league member /a Party member / a soldier be a member of the league / the Party be in the league / the Party / the army1) He joined the league in 2002.He _ a _ for two yea
20、rs.He _ a _ the _ for two years.He _ the league for two years.2) My brother joined the army two years ago.My brother _a _ for _ _.My brother _ in _ for two years.,Exercises,His father has died. (for 2 years)The football match has begun.(since9:00a.m)The twins have joined the army. (since they are 18
21、years old)My teacher has just left Nanjing. (for 3 days),His father has been dead for 2 years.,The football match has been on since 9:00 a.m.,The twins have been soldiers/ been in the army since they are 18years old.,My teacher has been away from Nanjing for 3 days,重点句型:It is/ has been+段时间+since从句 段
22、时间+has passed+ since从句,eg. 他死了两年了：He died two years ago.He has been dead for two years /since two years ago It is/ has been two years since he died.Two years has passed since he died.,1. 这本书我借了一个月了。,I borrowed this book a month ago.,It is/ has been a month since I borrowed the book.,I have kept the
23、book for a month. /since a month ago.,A month has passed since I borrowed the book.,Have/has gone tohave/has been to have/has been in,have/has gone to:已经去了或在途中，还没有返回；have/has been to:曾今去过某地，现在已经回来了,后面可接表示“次数”的状语; have/has been in:表示某人“已在某地停留一段时间，现仍在那里”，其后常带表示一段时间的状语。,have /has been to和have / has gon
24、e to 的用法区别,1 “ Have /has been to+地名 ”表示曾经去过某地，说话时已经回到说话地点， 常与once 、twice、ever、never 等时间连用。2 “have / has gone to +地名 ”表示去某地了，现在没有回答，人不在说话地点。 巧记： been to ，gone to 意不同，两者用法要记清； have been to + 地名，曾经到过某地行； have gone to + 地点，到某地去了一走远。,用have /has been to和have / has gone to填空 Hi，Lucy， you ever Beijing？ No，I
25、 . What about your sister，Lily？ Oh，she Chengdu， she will come back next week. Ok，thanks. Youre welcome.,have been to,havent,has gone to,用法四,My parents the Great Wall twice.- you ever Xiamen?3.How long Peter the park?4.My sister the shop. She will be back in two hours.5.She Shanghai. She isnt here.6.
26、She Shanghai for two years.,has gone to,have been to,Have,been to,has,been in,has gone to,has been in,练一练：用have been to,have been in, have gone to填空。,Exercises,Tom 在哪儿？ 他去书店买书了。我在北京待了5年了。Jack 去过上海两次了,-Where is Tom?-He has gone to the bookshop to buy some books.,I have been in Beijing for 5 years.,Ja
27、ck has been to Shanghai twice.,Correcting,1. I have borrowed the book for 3 months.2. My bother has joined the army since he was 18.3. Jack and Tom have lived here since 5years.4. The film has been on since I have come to the cinema.5. When has Mr. Li caught a bad cold?,have kept,has been in/ been a
28、 member of the army,since 5 years ago/ for 5 years,came,did,catch,6. Ten years have passed since they got married.7. Jim has gone to Beijing for 2 years.8.What time have the factory opened?9.I have gone to Chunhua Middle School twice,has,has been in,did,open,been to,Exercises,I am an American boy I
29、came to China two years ago. I _(study) here for two years. My father often (take) me_ (play) football on the playground. Last week I _ (take) to the park by him. We saw a lot of monkeys (jump) in the tree. I heard a voice from behind When I (walk ) along the river. I thought myself. “It must_ (be) Mr. Brown. He _(take) photos.” We_ (enjoy) that day. We _ (go) back to America next week.,have studied,takes,to play,Was taken,waked,jump,be,is taking,enjoyed,will go,
